Java
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Java – how does this cause deadlocks?
I was brushing my java and was asked this question in the exercise How can the following cause deadlock? private Objec…… -
Logical operations on Java enumerations
I have a project where I have to deal with different subsets of large data sets in different scenarios The way I write…… -
Using private methods from another class in Java
I have two classes: public class Class1{} public class Class2{ private void simpleMethod(){ /*...*/ } } In class2,…… -
Convert int to object in Java
I have a problem: I work in an eclipse environment Sometimes the computer does not give the following conversion: int …… -
Java – JPA criteriabuilder upper gives a compilation error
I am trying to use criteriabuilder for case insensitive queries, as described in Hibernate JPA criteriabuilder ignore …… -
Java – a regular expression used to split a German address into its parts
Good evening, I tried to split the parts of the German address string into its parts through Java Does anyone know reg…… -
java – Quartz StatefulJob / non-StatefulJob
Can you explain to me the exact average value of statefuljob in quartz, which is different from that without statefulj…… -
Java – how to set a custom object in the JTable line
I should first tell it that this is not about rendering table cells This is the tablemodel I'm building using a 2D arr…… -
Modifying private instance variables in Java
See English answers > java private field visibility6 public class Account { private String name; private do…… -
JavaFX changelistener is not always valid
I have a JavaFX application and have a concurrent task there Because the binding does not append new text to the texta…… -
How to get the logical part of a sentence in Java?
Suppose there is a sentence: On March 1,he was born. Change it to He was born on March 1. Without breaking the meaning…… -
Java – find non-public elements between two arrays
In an interview, people were asked to find unusual elements between two string arrays Eg: String a[]={"a","b","c","d"}…… -
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How do I get string values from ArrayList and store them in a comma separated single string in Java 8?
I have an ArrayList with some strings I want to store the list of numbers in ArrayList in a single string separated by…… -
Java – parse byte array containing unknown length field
I parse a byte array with the following specifications in Java: Trace data format: - 4 bytes containing the Id. …… -
Java – Maven version cannot be changed in the eclipse ide
There was no MVN package inside eclipse, but after success in the terminal, I realized that eclipse was running Maven …… -
Why are Java generic type parameters not implemented at run time?
My understanding is that C # and Java differ in some aspects in terms of generics. One of them is that generic type pa…… -
Java – print a string from ArrayList of string []?
I have an ArrayList of a complete string array. I build it as follows: String[] words = new String[tokens.length]; My …… -
Assembly – do you have to pop an error code pushed onto the stack by some exceptions before returning from the interrupt handler?
I have loaded an IDT table with 256 entries, all of which point to similar handlers: >Push exception numbers for ex…… -
Java – how to reference / handle “this” before the constructor ends?
I think the specific usage of this problem is as follows, but it is more common I have a custom JFrame class, which ca…… -
Java – stream and parallelstream
I have a test code like this: List<Integer> list = new ArrayList<>(1000000); for(int i=0;i<1000000;i++…… -
Using small (1-10 items) instance level collections in Java
When creating classes in Java, I often find that the instance level collection I create is very small - there are less…… -
Java – symbol class intent not found
I am a novice in Android development and Java and XML coding But I'm learning this tutorial: http://www.steventrigg.co…… -
Java HTTP post request UTF-8
My J2EE application can receive post requests from JSP pages, no problem But if I send a post request using another Ja…… -
How to use a common library for multiple Java Web projects
I have four different projects and I am using Weblogic to deploy my project Several libraries (JAR files) are common t…… -
Java – joda time: get the first / second / last Sunday of the month
In normal Java, I have this code to get the last Sunday of this month Calendar getNthOfMonth(int n,int day_of_week,int…… -
How can I use Java util. Calendar returns to the Islamic calendar?
I know Java util. The calendar class method getInstance () returns a Gregorian calendar, but how can I get an Islamic …… -
Java – add external in eclipse Jar file
I'm adding a download for a java project There was a problem with the jar file This is really my first time using ecli…… -
Java – UTF-8 encoding; Only some Japanese characters have not been converted
I get the parameter value from Jersey web service as the parameter. The service is Japanese character Here, 'Japanese …… -
Java – convert resultset to string array
I need to convert my result set to a string array I'm reading email addresses from the database, and I need to be able…… -
Please recommend using the Java framework to easily implement crud
I know ror can easily complete crud, but is there a similar framework in Java to make crud simple instead of entering ……